I feel like everyone will have a different answer for this... but imo nothing sucks more than a shinner (except a broken bone, in which case pads wont save your ass anyway). Shadow Conspiracy makes a really good line of pads, they are a little pricey but super flexible, light and breathable.

I love my FUSE pads. I have the DELTA knee and SHIN/WHIP/ankle pads. Started with the Shadows but the actual protection (especially the knee) was pretty low and they started to come apart within a month. My FUSE are still going after a year and a half.